Creating backend to handler password resets

cmd/api/handlers-api.go

@@ -14,6 +14,7 @@ import (
 
 	"github.com/go-chi/chi/v5"
 	"github.com/stripe/stripe-go/v79"
+	"golang.org/x/crypto/bcrypt"
 )
 
 type stripePayload struct {
@@ -465,3 +466,45 @@ func (app *application) SendPasswordResetEmail(w http.ResponseWriter, r *http.Re
 
 	app.writeJSON(w, http.StatusCreated, resp)
 }
+
+func (app *application) ResetPassword(w http.ResponseWriter, r *http.Request) {
+	var payload struct {
+		Email    string `json:"email"`
+		Password string `json:"password"`
+	}
+
+	err := app.readJSON(w, r, &payload)
+	if err != nil {
+		app.errorLog.Println(err)
+		app.badRequest(w, r, err)
+		return
+	}
+
+	user, err := app.DB.GetUserByEmail(payload.Email)
+	if err != nil {
+		app.errorLog.Println(err)
+		app.badRequest(w, r, err)
+		return
+	}
+
+	newHash, err := bcrypt.GenerateFromPassword([]byte(payload.Password), 12)
+	if err != nil {
+		app.errorLog.Println(err)
+		app.badRequest(w, r, err)
+		return
+	}
+
+	err = app.DB.UpdatePasswordForUser(user, string(newHash))
+	if err != nil {
+		app.badRequest(w, r, err)
+		return
+	}
+
+	var resp struct {
+		Error   bool   `json:"error"`
+		Message string `json:"message"`
+	}
+	resp.Error = false
+	resp.Message = "Password reset."
+	app.writeJSON(w, http.StatusCreated, resp)
+}

cmd/api/routes-api.go

@@ -27,13 +27,14 @@ func (app *application) routes() http.Handler {
 	mux.Route("/api/admin", func(mux chi.Router) {
 		mux.Use(app.Auth)
 
-		mux.Get("/test", func(w http.ResponseWriter, r *http.Request) {
-			w.Write([]byte("got in"))
-		})
+		// mux.Get("/test", func(w http.ResponseWriter, r *http.Request) {
+		// 	w.Write([]byte("got in"))
+		// })
 
 		mux.Post("/virtual-terminal-succeeded", app.VirtualTerminalPaymentSucceeded)
 	})
 	mux.Post("/api/forgot-password", app.SendPasswordResetEmail)
+	mux.Post("/api/reset-password", app.ResetPassword)
 
 	return mux
 }

cmd/api/templates/password-reset.html.gohtml

@@ -12,6 +12,7 @@
         <p>
             <a href="{{.Link}}">{{.Link}}</a>
         </p>
+        <p>This link expires in 10 minutes.</p>
         <p>
             --
             <br>

cmd/api/templates/password-reset.plain.gohtml

@@ -7,6 +7,8 @@ Click on the link below to get started:
 
 {{.Link}}
 
+This link expires in 10 minutes.
+
 --
 Widget Co.
 {{ end }}

cmd/web/handlers.go

@@ -340,6 +340,13 @@ func (app *application) ShowResetPassword(w http.ResponseWriter, r *http.Request
 		return
 	}
 
+	// make sure not expired
+	expired := signer.Expired(testURL, 10)
+	if expired {
+		app.errorLog.Println("Link expired")
+		return
+	}
+
 	data := make(map[string]interface{})
 	data["email"] = r.URL.Query().Get("email")
 	if err := app.renderTemplate(w, r, "reset-password", &templateData{

cmd/web/templates/reset-password.page.gohtml

@@ -44,7 +44,7 @@ Reset Password
 <script type="module">
     import {reset} from "/static/js/login.js"
     document.getElementById("reset-btn").addEventListener("click", () => {
-        reset({{.API}});
+        reset({{.API}}, {{index .Data "email"}});
     })
 </script>
 {{end}}

internal/models/models.go

@@ -280,3 +280,16 @@ func (m *DBModel) Authenticate(email, password string) (int, error) {
 
 	return id, nil
 }
+
+func (m *DBModel) UpdatePasswordForUser(u User, hash string) error {
+	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+	defer cancel()
+
+	stmt := `UPDATE users SET password = ? where id = ?`
+
+	_, err := m.DB.ExecContext(ctx, stmt, hash, u.ID)
+	if err != nil {
+		return err
+	}
+	return nil
+}

static/js/login.js

@@ -81,7 +81,7 @@ export function forgot(api) {
         });
 }
 
-export function reset(api) {
+export function reset(api, email) {
     let form = document.getElementById("reset-form");
 
     if (form.checkValidity() === false) {
@@ -98,7 +98,8 @@ export function reset(api) {
     }
 
     let payload = {
-        email: document.getElementById("email").value,
+        password: document.getElementById("password").value,
+        email: email,
     };
 
     const requestOptions = {
@@ -116,6 +117,9 @@ export function reset(api) {
             console.log(response)
             if (response.error === false) {
                 showSuccess("reset-messages", "Password reset")
+                setTimeout(function () {
+                    location.href = "/login"
+                }, 2000)
             } else {
                 showError("reset-messages", response.message)
             }